Global Patent Index - EP 3843070 A1

EP 3843070 A1 20210630 - OPTICAL COMPENSATION SYSTEM AND OPTICAL COMPENSATION METHOD OF DISPLAY DEVICE

Title (en)

OPTICAL COMPENSATION SYSTEM AND OPTICAL COMPENSATION METHOD OF DISPLAY DEVICE

Title (de)

OPTISCHES KOMPENSATIONSSYSTEM UND OPTISCHES KOMPENSATIONSVERFAHREN EINER ANZEIGEVORRICHTUNG

Title (fr)

SYSTÈME DE COMPENSATION OPTIQUE ET PROCÉDÉ DE COMPENSATION OPTIQUE D'UN DISPOSITIF D'AFFICHAGE

Publication

EP 3843070 A1 20210630 (EN)

Application

EP 20214164 A 20201215

Priority

KR 20190176602 A 20191227

Abstract (en)

Provided is an optical compensation method for a display device including a pixel coupled between first power and second power sources. In the optical compensation method, the first voltage level of the second power source corresponding to a first luminance level is set while measuring the luminance of the display device, the second voltage level of the second power source corresponding to a second luminance level is set while measuring the luminance of the display device, the third voltage levels of the second power source for representative luminance levels including the first and second luminance levels are set based on the first and second voltage levels, and the fourth voltage levels of the second power source for the representative luminance levels according to temperature conditions are set based on the third voltage levels and temperature offsets according to the temperature conditions, under which the display device is driven.

IPC 8 full level

G09G 3/32 (2016.01)

CPC (source: CN EP KR US)

G09G 3/22 (2013.01 - US); G09G 3/30 (2013.01 - CN); G09G 3/32 (2013.01 - KR); G09G 3/3233 (2013.01 - EP); G09G 5/10 (2013.01 - US); G09G 3/2014 (2013.01 - EP); G09G 2300/0809 (2013.01 - US); G09G 2300/0842 (2013.01 - EP); G09G 2300/0861 (2013.01 - EP); G09G 2310/0267 (2013.01 - US); G09G 2310/0275 (2013.01 - US); G09G 2310/0286 (2013.01 - US); G09G 2310/08 (2013.01 - US); G09G 2320/0233 (2013.01 - EP); G09G 2320/041 (2013.01 - EP US); G09G 2320/062 (2013.01 - KR); G09G 2320/0626 (2013.01 - CN); G09G 2320/0673 (2013.01 - US); G09G 2320/0693 (2013.01 - EP KR); G09G 2330/021 (2013.01 - US); G09G 2330/028 (2013.01 - EP); G09G 2360/145 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3843070 A1 20210630; CN 113053294 A 20210629; KR 20210084765 A 20210708; US 11322075 B2 20220503; US 11600217 B2 20230307; US 2021201758 A1 20210701; US 2022262299 A1 20220818

DOCDB simple family (application)

EP 20214164 A 20201215; CN 202011485799 A 20201216; KR 20190176602 A 20191227; US 202017008047 A 20200831; US 202217734408 A 20220502